Pre-formed taco shell



FIG. 1 is a front perspective view of a pre-formed taco shell, showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view of the pre-formed taco shell. 

The ornamental design for a pre-formed taco shell, as shown and described. 